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(**************************************************************************)
(* 									  *)
(* Ocamlgraph: a generic graph library for OCaml 			  *)
(* Copyright (C) 2014-2015 						  *)
(* Giselle Reis 							  *)
(* 									  *)
(* This software is free software; you can redistribute it and/or 	  *)
(* modify it under the terms of the GNU Library General Public 		  *)
(* License version 2.1, with the special exception on linking 		  *)
(* described in file LICENSE. 						  *)
(* 									  *)
(* This software is distributed in the hope that it will be useful, 	  *)
(* but WITHOUT ANY WARRANTY; without even the implied warranty of 	  *)
(* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 		  *)
(* 									  *)
(**************************************************************************)

(** Graph cliques *)

(** {1 Clique algorithms} *)

(** {2 Bron-Kerbosch Algorithm}

  This algorithm will find and return all maximal cliques in an undirected graph. *)

(** Minimal graph signature for Bron-Kerbosch.
    Sub-signature of {!Sig.G}. *)
module type G = sig
  type t
  module V : Sig.COMPARABLE
  val succ : t -> V.t -> V.t list
  val fold_vertex : (V.t -> 'a -> 'a) -> t -> 'a -> 'a
end

module Bron_Kerbosch(G : G) : sig
  val maximalcliques : G.t -> G.V.t list list
  (** [maximalcliques g] computes all the maximal cliques of [g] using the
      Bron-Kerbosch algorithm. It returns the sets of vertices belonging to the
      same maximal clique. *)
end